Perforator for printing-presses.



No. 639,206. Patented Dec. I2, I899.

A. C. MILLER. PERFORATOR FORPRINTING PBESS ES. I

(Application filed Mar. 20, 1899.)

(No Model.)

f 3 a I 5 2 4 w 6 a .mw. B9, 2 "a 2 A w M ,U a n J a 6 in J D fl W//J7////& /A/ W/ /A m 1 J m 4 W Q W 3 humans 8 ANDREW O. MILLER, OFCORONA, CALIFORNIA.

PERFORATOR FOR PRlNTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 639,206, dated December12, 1899.

Application filed March 20, l 8 9 9- T0 on whom it-may concern.-

Be it known that 1, ANDREW C. MILLER, a citizen of the United States,residing at Corona, in the county of Riverside and State of California,have invented a new and useful Paper-Perforator for Printing-Presses, ofwhich the following is a specification.

In the printing of receipt-forms, checks, or orders that are to bedetached from stubs it is necessary to perforate or partially break thepaper, so that the receipt or check can be easily torn 0%. Suchperforating has hitherto been accomplished by arranging a serratedperforating-blade in the type-form and running the printed sheetsthrough the press after the printing has been done, and it has also beenaccomplished by arranging a serrated blade in a case adapted to be setin the typeform with the type, and the said serrated blade has beenarranged to be projected toward the platen when the platen comes in con-.tact with the type-form to make the impression.

The object of my invention is to produce a superior perforating devicewhich may be set up with the type in the type-form and which will bebelow and out of the way of the travel of the ink-rollers when the typeis being inked and which will be operated at the time the impression ofthe type upon the paper is being made and to provide means for operatingthe same which can be readily set to register with the perforating-bladeand to operate the device in any part of the form.

The accompanying drawings illustrate my invention.

Figure 1 is a longitudinal mid-section of my device in position foroperation. Portions of the printing-press platen and the type-form arealso shown. Fig. 2 is a plan of the perforator-case. Fig. 3 is a plan ofthe perforator-plate. Fig. 4 is an exaggerated cross-sectional detail online 4 4, Fig. 1, showing the parts in position for printing andperforating.

A indicates the perforator-case, in which is mounted the perforatorblade B, having spring-engaged shoulders or lugs b b.

1 1 indicate springs seated in sockets 1 in case A to press upon thelugs or shoulders I) to press the plate against one end of aplateoperating lever D, which is a lever of the third class, pivoted atits middle to the case by a Serial No. 709,837. (No model.)

pivot d and arranged to hold the perforating plate normally below thelevel of the type.

E is a lever engaging and operating follower working in a hole a, whichextends through the face of the case.

0 indicates the perforator-plate flat on one side to be fastened on thepad 3', carried by the platen 3 of the press. The plate 0 is perforated,as at c, to receive the edge of the perforator-blade and is providedwith a pin 0 to engage the follower E to cause it to operate the lever.

0 indicates a locating-pin on the plate C to register with a hole a inthe case. The pins and holes are so arranged that when the pins are inthe holes the perforations a will be in position to receive the edge ofthe perforatorblade when the same is thrown out bythe lever.

It is immaterial for the purposes of my intion whether the plate beperforated by a slot or by a number of teeth-receiving openings, whichare preferred and are shown at c.

The blade 13 and lever D are seated in and work in a slot 2 in the caseA.

The case may be of a single piece, and the recesses 1 for the springsand the guide-slot 2 for the blade and lever may be cut out from theunder side thereof; but for convenience of construction I have shown theperforatorcase as made of two separable halves a" a, which are fastenedtogether by screws 2 2.-

4 indicates the body of the press.

5 5 indicate type, and 6 6 indicate slugs.

a is a countersunk annular shoulder at the outer end of thefollower-hole a. This shoulder retains the follower E in the case.

The outer end of the followerEis counter sunk, as at e, and the end ofthe follower-operating pin 0' is tapered to fit the countersink 6 and isof the same diameter as the hole through the countersunk annularshoulder a so that when it is desired to locate the plate on the case tocause the perforations c of the plate to register with the teeth 8 ofthe blade B this can be done byinserting the pins 0 and a into the holesa and 01/, respectively. The axes of the pins 0 and c are preferably inline with the perforations c, and the centers of the centering-holes a aare preferably in line with the mouth of the slot 2.

When it is desired to use the perforator,

the case is set with the type in the form and is held in the positiondesired by blocking with slugs or furniture, as at 6 6. When the form isset in the press, the perforator-plate is placed thereon by insertingthe pin 0 in the pin-hole a and the plunger-operating pin 0 in the holea in engagement with the lever-operating follower E. Paste is thenapplied to the back of the perforator-plate and the press is operated inthe manner usual when an impression is taken, and the pressure of theplaten causes the paste to adhere to the padding 3 on the platen andfastens the plate firmly thereto.

The pin-hole a in the perforator-case is preferably countersunk, thecenter being just large enough to allow the pin 0 to pass therethrough,thus to provide for guiding the tapering end of the follower-operatingpin into the hole in case the padding on the platen should move.

The follower E is provided with a countersink to allow the tapering endof the followeroperating pin to enter some distance to retain it thereinwhen the perforating-plate is being set on the platen. This also servesto center the pin.

The perforating-plate is made of thin sheet metal and is provided eitherwith a slot extending lengthwise intermediate its ends or withperforations corresponding in size with the serrations or points on theperforatingblade.

In operation the paper 7 to be printed and perforated is placed on theplaten in the usual manner, with the part to be perforated lying overthe perforated plate. The press is then operated and simultaneouslymakes the impression of the type and perforates the paper--that is tosay, when the platen comes within a short distance of the type the pins0 c on the perforating-plate enter their respective pin-receiving holesa and a and the pin 0, through the medium of the follower E, engageswith the lever D to throw the perforating-plate outward. The teeth orpoints on the blade cut through the paper and enter the perforatingplate. When the platen leaves the type after the impression andperforation, the springs l 1 force the blade inward and operate thelever to force the follower outward ready to be again engaged by pin 0at the next impression.

The top of the perforator-case is below the gg level of the type and outof the path of the inking-rolls, and the thickness of theperforating-plate is not quite equal to the difference between theheight of the case and the height of the type.

By providing a perforating-plate which can be readily located on theperforator-case and then fastened to the platen by operating the press Iavoid the necessity of accurately lo eating the perforator-case in thetype-form, and the perforator can readily be placed in any position orangle in the form.

By providing the two pins on the perforating-plate to register with theholes in the case the openings or slots therein always register with theperforating-blade to receive it when it is thrown upward to perforatethe paper.

Now, having described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A perforator for printing-presses comprising a case; aperforating-blade in the case; springs arranged to retract the blade; alever of the first class pivoted in the case with one end in engagementwith the perforating-blade at the middle thereof; a follower to engagethe other end of the lever; and means carried by the platen of the pressto actuate the follower.

2. A perforator for printing-presses comprising a case having a slottherein for the perforating-blade and also having a pin-receiving holeat each end of the case; a perforating-blade in the case to play throughthe slot; springs arranged to retract the blade; a lever of the firstclass pivoted in the case with one end in engagement with theperforatingblade at the middle thereof; a follower to engage the otherend of the lever; and a perforator-plate carried by the platen of thepress and provided with pins to register with the holes, one of saidpins being arranged to operate the follower.

3. The combination of the perforator-case provided with a slotand'provided at one end with a pin-centering hole and at the other endwith a follower-holding hole having an annular shoulder at its outerend; a perforatingblade mounted in the slot and provided at its endswith projections; springs in the case to engage the projections toretract the blade; a lever pivoted in the case with one end inengagement with the blade a follower in the follower-hole and engagingthe other end of the lever; a perforated plate provided with afollower-operatin g pin to engage the follower; and a locating-pin toenter the centering-hole of the case.

4:. The combination of the slotted case provided with a hole having aninwardly-projecting shoulder at its outer end; a follower in such hole;a perforating-blade mounted in the slot; and a lever pivoted in the casewith one end in engagement with the blade and the other end in the pathof the follower.

ANDRE WV C. MILLER.

Witnesses:

O. B. WEBSTER, CHAS. E. PEACH.

ICC

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